News Center

News List

  • Splittruckcam System Rock Fragmentation Size Image

    The splittruckcam system provides realtime measurement of the particle size distribution of postblasted rock delivered to the primary crusher split engineerings innovative solution provides operators with new opportunities to effectively and efficiently manage the transition from the pit to the plant

  • Influence Of Blasting Parameters And Density Of Rocks On

    That influence it such as rock properties explosive parameters and charge loading parameters the blasting operations are designed to fracture the insitu rock mass so as to prepare it for excavation and transportation operations the runofmine rom fragmentation is considered acceptable when it

  • Rock Fragmentation Inside Mines

    Rock fragmentation course mngn 407 semester spring 2005 credits 30 hours mining engineering department colorado school of mines golden colorado instructor dr vilem petr vpetr

  • Splitshovelcam System Rock Fragmentation Size Image

    Fragmentation profile size at the muckpile influences dig rates shovel maintenance and overall production in many different ways get on the path to understanding what is happening at the muckpile run of mine perhaps the best and only feasible place to measure automatically and online the postblast fragmentation before it hits the leach pad

  • Controlling Fragmentation Orica Mining Services

    Fragmentation in the broader context of mining outline the tools and techniques that can help to improve a mines performance and give practical case examples of successful fragmentation management the conclusions are compelling a step change in the available range of explosive energy combined with the accuracy of electronic

  • New Methodology To Improve Productivity

    Including measurements of runofmine fragmentation and survey data around all crushing and grinding circuits these measurements are combined with rock characterisation and the definition of strength and structure domains to model the

  • Prediction Of Rock Fragmentation In Open Pit Mines

    Fragmentation of the rock after blasting is an important determinant of the cost associated with these two components of mine development in this paper fragmentation of the rock after blasting is estimated analytically by the use of neural network method

  • Waste Rock Dump Management And Stability Evaluation

    Waste rock dump management and stability evaluation d olivier srk the management of mine waste dumps has historically been assigned mainly to the onsite mining operations in recent years focus has turned to a more scientific approach to waste rock dump management and the auditing of these manmade structures

  • Break It Better Mine Blast Fragmentation International

    Better fragmentation through team work at dos pobres mine safford az by d brandt et al considered this a copper oxide heapleach mine where as mine depth increased the proper fragmentation size became harder to achieve due to less weathering and different rock types

  • Application Of Laser Scanning To Measure Fragmentation

    Laser scanning for fragmentation measurement in an underground mine the system is now used routinely for fragmentation measurement at the ernest henry sublevelcave mine following extensive testing and calibration the system is being used to study the effects of blasting parameters on rock fragmentation to optimise blast design

  • Blast Optimization Metso

    Blasting is the first stage of comminution in most mining and should not be seen solely as a means of reducing rock size enough to load it on a truck optimizing blast fragmentation to improve comminution efficiency the runofmine rom size distribution has a large impact on the performance of downstream crushing and grinding processes

  • Rock Fragmentation By Blasting

    The fragmentation of rock is fundamental to mining it is the first preparatory stage in the extraction process making rock small enough and loose enough to be efficiently excavated but this simple statement underestimates how important this activity is for the whole mining operation by optimising rock fragmentation by blasting you can

  • Application Of Stochastic Approach To Blast

    Gives a description of a stochastic approach to blast fragmentation modelling and uses this expansion project to demonstrate its application in this particular case study there was a need to estimate the expected run of mine fragmentation associated with blasting in the deeper and more competent ore domains

  • The Effects Of Short Delay Times On Rock Fragmentation

    Performance measures can be made to improve fragmentation based on the mines goals one of the blast design parameters that can be modified to improve fragmentation is timing there is some disagreement amongst researchers and blasters regarding the best delay times for increased rock fragmentation some studies indicate that utilizing short

  • Blast Fragmentation Measurements In Open Pits

    Blast fragmentation measurements in open pits posted by john on 31st august 2017 david varcoe principal mining engineer of amc consultants notes a recent project in which amc was involved that required amongst other activities a review of options to measure blast fragmentation in an operating open pit mining environment

  • Fragmentation Predictor Software Mine Excellence

    Fragmentation size distribution of a blast is the primordial kpi that determines the quality of a blast many variables such as blasting geometrical parameters rock properties explosive specification and insitu geology influence rock fragmentation it is difficult to give complete theoretical solution for

  • Blast Fragmentation Impacts On Downstream Processing

    These conditions directly impact t e runofmine rom fragmentation which in turn influences downstream process efficiencies in particular when harder ore is processed throughput and

  • Impact Of Blast Fragmentation On Hydraulic Excavator

    Over a 10 m bench height and is hauled 11 km to the run of mine rom pad and primary crusher the field study concentrated on the fragmentation assessment and excavator performance of the liebherr 994 figure 1 within the stage 1 cutback of the wallaby pit approximately seven excavator production hours were monitored during the study period

  • A New Framework For Evaluation Of Rock Fragmentation In

    Rock fragmentation is a complex dynamic process relating to the interaction between rock mass and explosives for this reason a mature model has not yet been developed to meet all mining conditions and geological features siddiqui et al 2009 in order to overcome this drawback the main goal of this paper is to provide a new framework to

  • Investigation Of Rock Blast Fragmentation Based On

    Investigation of rock blast fragmentation based on specific explosive energy and insitu block size was calibrated by nonlinear fits to 35 bench blasts in different sites from the sungun copper mine the akdaglar quarry the and mrica quarry to predict the run of the mine

  • Blast Fragmentation Mining And Blasting

    Oct 12 2012 finalsize fragmentation is usually obtained before any appreciable rock movement or throw occurs rock can absorb only so much energy and only at a certain maximum rate before it will fail the final displacement of the bulk of the rock is more a function of

  • Improving Rock Fragmentation At The Ahafo Gold Mine Site

    After a statistical analysis of the available data on postblast fragmentation it was observed that the desired run of mine rom p80 target of 350 mm is rarely met it was concluded that the kuzram model used to predict the fragment size distribution is incorrectly applied which resulted in a planned blast design that produces a coarse

  • Break It Better Mine Blast Fragmentation International

    Better fragmentation through team work at dos pobres mine safford az by d brandt et al considered this a copper oxide heapleach mine where as mine depth increased the proper fragmentation size became harder to achieve due to less weathering and different rock types

  • Surface Mine Blasting Office Of Surface Mining

    Basic principles of dynamic rock fragmen tation with new blast design technology and recent developments in both methods and equipment for potential improvements in blasting practices this paper out lines surface mine blasting research com pleted since the bureaus last technology transfer seminar on blasting in december